body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #f0f0f0;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}